[Feature Request] Add a function to rotate selected vertices both in mesh editing mode and deformation editing mode.

[helloar14]

Validations

• I have checked for similar feature requests and could not find any.
• I have made sure this is not an already-existing feature.

Description

When editing deformations especially, selecting multiple vertices by mouse and then rotating those selected vertices instead of just only able to move them will be very helpful.

Suggested solution

Add a way to rotate selected vertices (maybe mouse drag + key hold, or add a handle like the one currently appears at node corners.

Alternative solution

No response

Additional Context

No response

[helloar14]

Closed because of duplicate issue with #216